Home / 219,179.01-302,464.49-128,516.25

Finding the Fourth Proportional to 219,179.01, 302,464.49 and 128,516.25

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Solution

The fourth proportional to 219,179.01, 302,464.49 and 128,516.25 is: 177,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,179.01 : 302,464.49 = 128,516.25 : x
  2. Step 2: Convert to fraction form
    219,179.01/302,464.49 = 128,516.25/x
  3. Step 3: Cross multiply
    219,179.01x = 302,464.49 × 128,516.25
  4. Step 4: Simplify right side
    219,179.01x = 38,871,601,370.38
  5. Step 5: Solve for x
    x = 38,871,601,370.38/219,179.01
  6. Step 6: Final answer
    x = 177,350.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.